This challenge is part of the 8-Ball vs Scratch Mission that closes the first season of Fortnite Chapter 2. You'll have to perform a few dance moves at three distinct locations: Rainbow Rentals, Beach Bus, and Lake Canoe. If you have at least one dance in your emotes carousel, there is no particular difficulty once you know where to go!
Map
Rainbow Rentals
This notable place is located in the west on the coast. It's a series of small beach huts, not far from Holly Hedges. They aren't very rich in loot, but you have a boat docked at the pontoon to get you to your next destination in a hurry.
Beach Bus
You will find the Beach Bus in the small cove north of Steamy Stacks. The vehicle is decorated in a summery way, you can't miss it!
Lake Canoe
The last place you'll have to dance is Canoe Lake. It is a fairly large lake with lots of loot and fishing nearby. It's best to venture there well-armed!
We recommend the Team Rumble mode to achieve this challenge, especially during the week following its release. It'll reduce your chances of running into warring enemies as soon as you land.